No. 131375
5115
- 国家或地区
巴西 - 标准体系NBR
对应标准
- ABNT NBR NM 202:2000Steel round wires for cold forging of bolts, nuts, rivets and similar components
- ABNT NBR 11527:1990Round steel bars, hot-rolled, for cold forging
- ABNT NBR 6915:1991Steels for die hot forging - Specification
- ABNT NBR NM 87:1996Carbon steel and steel alloy for general engineering purposes - Designation and chemical composition
- ABNT NBR 9748:2011Spheroidize heat treatment of wire rod for cold conforming - Procedure